Determine the Constant of Variation for the Stated Condition $\mathrm { s }$

question 521

Multiple Choice

Determine the constant of variation for the stated condition.
- $\mathrm { s }$ varies directly as $\mathrm { r } ^ { 2 }$ , and $\mathrm { s } = 80$ when $\mathrm { r } = 4$ .

• A) \(\mathrm { k } = 5\)
• B) \(k = 80\)
• C) \(\mathrm { k } = \frac { 1 } { 5 }\)
• D) \(\mathrm { k } = 76\) If y varies directly as x, find the direct variation equation for the situation.

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